Home / 9,579.39-13,218.69-5,330.26

Finding the Fourth Proportional to 9,579.39, 13,218.69 and 5,330.26

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Solution

The fourth proportional to 9,579.39, 13,218.69 and 5,330.26 is: 7,355.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,579.39 : 13,218.69 = 5,330.26 : x
  2. Step 2: Convert to fraction form
    9,579.39/13,218.69 = 5,330.26/x
  3. Step 3: Cross multiply
    9,579.39x = 13,218.69 × 5,330.26
  4. Step 4: Simplify right side
    9,579.39x = 70,459,054.56
  5. Step 5: Solve for x
    x = 70,459,054.56/9,579.39
  6. Step 6: Final answer
    x = 7,355.28

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.